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Pusa Decomposer to Curb Stubble Burning

  • 25 Sep 2020
  • 2 min read

Why in News

Recently, the scientists have developed a bio-decomposer technique called ‘PUSA Decomposers’ for converting crop stubble into compost.

  • Delhi and many other North Indian States are covered with smoke during winters due to stubble burning in the neighbouring States by the farmers.

Key Points

  • PUSA Decomposers:
    • The decomposers are in the form of capsules made by extracting fungi strains that help the paddy straw to decompose at a much faster rate than usual.
      • The fungi helps to produce the essential enzymes for the degradation process.
  • Decomposer Mixture:
    • It involves making a liquid formulation using decomposer capsules and fermenting it over 8-10 days and then spraying the mixture on fields with crop stubble to ensure speedy bio-decomposition of the stubble.
      • The farmers can prepare 25 litre of liquid mixture with 4 capsules, jaggery and chickpea flour. The mixture is sufficient to cover 1 hectare of land.
  • Time to Decompose:
    • It takes around 20 days for the degradation process to be completed.
      • Under usual circumstances, shredded and watered paddy straw, which is mixed with soil, takes at least 45 days to decompose.
      • It does not give enough time for farmers to prepare fields for the wheat crop on time.
  • Benefits:
    • The decomposer improves the fertility and productivity of the soil as the stubble works as manure and compost for the crops and lesser fertiliser consumption is required in the future.
      • The soil loses its richness due to stubble burning and it also destroys the useful bacteria and fungi in the soil, apart from causing harm to the environment.
    • It is an efficient and effective, cheaper, doable and practical technique to stop stubble burning.
    • It is an eco-friendly and environmentally useful technology and will contribute to achieve Swachh Bharat Mission.

Source: TH

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